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6 3. Place the recirculation switch in the ON position. 4. Observe the recirculation door. 5. Place the outside air switch in the ON position. Does the recirculation door move from the Go to Step 7 Go to Air 7 1. Place the blower motor switch in the maximum speed position. 2. Place the mode switch in each mode position. Does air flow sufficiently from the proper Go to Testing Go to Step 8 8 Inspect the air delivery system for the A dirty HVAC air filter, if An obstruction to the airflow Air leaks Misaligned air ducts Go to Step 21 Go to Step 9 9 Inspect the mode door and the mode A misaligned mode actuator-Refer to Broken or binding linkages or mode
2007 Hummer H3 2007 HVAC HVAC - Manual - H3
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